On Sat, May 29, 2010 at 23:16:06 +0300, Per Lundberg wrote: > On Sat, May 29, 2010 at 10:54 PM, Julien Cristau <jcris...@debian.org> wrote: > > Hi Julien, > > > I'm fairly sure xdmcp over ipv4 works just fine with both xdm and gdm in > > squeeze, because I tested them (and made them work with the bindv6only=1 > > setting) a month or two ago. > > OK, that's interesting... Just for the sake of it, I even tried > enabling the bindv6only (net.ipv6.bindv6only=1) setting, to see if it > would make any difference. Negative; it still only binds to the udp6 > socket. > > p...@terah:/etc/sysctl.d$ sudo netstat -l -n -p | grep 177 > udp6 0 0 :::177 :::* > 1632/xdm > That's fine, bind() on in6addr_any lets you receive ipv4 packets when IPV6_V6ONLY is turned off (which xdm does even if the system default is backwards).
> Do you have any active XDM setup where you could try this yourself? As > I hinted in my previous email, I'm not 100% sure of this, but doesn't > the above udp6 line mean that it will *only* work from an ipv6-capable > client...? Sorry, I can't test right now, but no, as I said above an udp6 socket can talk to ipv4 hosts. Cheers, Julien
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